Microwave sintering of Zn-Nb doped barium hexaferrite synthesized via sol-gel method
A series of polycrystalline M-type hexagonal ferrites with the formula BaFe12-2xZnx NbxO19 (x = 0.2, 0.4, 0.6, 0.8 mol%) have been synthesized by the sol-gel method. The composition and microstructure govern the magnetic properties of ferrites. The XRD analysis shows the formation of pure magneto pl...
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Main Authors: | , , , , |
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Format: | Article |
Language: | English |
Published: |
Scientific Research Publishing
2014
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Online Access: | http://psasir.upm.edu.my/id/eprint/52181/1/MSA_2014032515413287.pdf http://psasir.upm.edu.my/id/eprint/52181/ http://www.scirp.org/journal/PaperInformation.aspx?PaperID=44143 |
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Summary: | A series of polycrystalline M-type hexagonal ferrites with the formula BaFe12-2xZnx NbxO19 (x = 0.2, 0.4, 0.6, 0.8 mol%) have been synthesized by the sol-gel method. The composition and microstructure govern the magnetic properties of ferrites. The XRD analysis shows the formation of pure magneto plumbite phase without any other impurity phases. The Zn-Nb substitutions in barium hexaferrite have been confirmed through magnetic measurements. The results show that the magnetic properties are closely related to the distributions of Zn-Nb ions on the five crystallographic sites. The saturation magnetization and coercivity increase with increasing Zn-Nb concentration. |
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